guarantee Copy link Outline I. An engagement for security1. fĭdes, ĕi, f.2. sătisdătio (legal)II. The person guaranteeing • guarantee: I. An engagement for security: 1. fĭdes, ĕi, f.: to give any one a g., esp. for personal safety, f. alicui dare, Cic. C. Rab. 10, 28: simly, to receive a g., f. accipere, Liv.: see also foll. art.: v. security, promise. 2. sătisdătio (legal): contracts which require a g. (as opp. to those in which a verbal engagement suffices), stipulationes quae s. exigunt, Gai. Dig. 2, 8, 1: instead of the abl. of satisdatio the participial form satisdato is generally used: by a g., or by pledges taken, satisdato, aut pignoribus datis, Ulp. Dig. 40, 5, 4, § 8: v. security. II. The person guaranteeing: vas, vădis; praes: v. surety.